Weather on June 21
Lowell, MA
55 Years of Data
Avg High
82°F
Avg Low
56°F
Warmest
2024
84°F avg
Coldest
1980
53°F avg
About This Date
June 21st in Lowell, MA typically brings warm summer weather, with average highs around 82°F and lows near 56°F — a 26°F daily swing. Over 55 years of records, the warmest June 21st was in 2024 (84°F average), while the coldest was 1980 (53°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 29% of June 21st dates historically, with the wettest June 21st recording 2.92" of rain. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Lowell, MA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 59° | 72° | — | — |
| 2024warmest | 98° | 69° | 84° | 1.63" | — |
| 2023 | 72° | 54° | 63° | — | — |
| 2022 | 78° | 47° | 62° | — | — |
| 2021 | 90° | 69° | 79° | — | — |
| 2020 | 98° | 68° | 83° | — | — |
| 2019 | 71° | 61° | 66° | 0.05" | — |
| 2018 | 84° | 54° | 69° | — | — |
| 2017 | 85° | — | — | — | — |
| 2016 | 90° | 56° | 73° | 0.86" | — |
| 2015 | 78° | 51° | 65° | 2.92" | — |
| 2014 | 76° | 47° | 61° | — | — |
| 2013 | 80° | 50° | 65° | — | — |
| 2012 | 97° | 65° | 81° | — | — |
| 2011 | 82° | 50° | 66° | — | — |
| 2010 | 92° | 60° | 76° | 0.23" | — |
| 2009 | 80° | 58° | 69° | — | — |
| 2008 | 80° | 58° | 69° | — | — |
| 2007 | 87° | 57° | 72° | 0.28" | — |
| 2006 | 81° | 59° | 70° | — | — |
| 2005 | 82° | 48° | 65° | — | — |
| 2004 | 74° | 48° | 61° | — | — |
| 2003 | 77° | 54° | 65° | — | — |
| 2002 | 83° | 53° | 68° | — | — |
| 2001 | 94° | 62° | 78° | 1.35" | — |
| 2000 | 81° | 54° | 67° | — | — |
| 1999 | 82° | 53° | 68° | — | — |
| 1998 | 80° | 63° | 71° | — | — |
| 1997 | 85° | 61° | 73° | — | — |
| 1996 | 73° | 58° | 65° | 0.1" | — |
| 1995 | 90° | 52° | 71° | — | — |
| 1994 | 87° | 62° | 75° | — | — |
| 1993 | 71° | 62° | 67° | 0.46" | — |
| 1992 | 78° | 64° | 71° | 0.41" | — |
| 1991 | 91° | 58° | 74° | — | — |
| 1990 | 71° | 60° | 66° | 0.08" | — |
| 1989 | 85° | 56° | 70° | — | — |
| 1988 | 89° | 67° | 78° | — | — |
| 1987 | 86° | 53° | 70° | — | — |
| 1986 | 70° | 48° | 59° | — | — |
| 1985 | 77° | 51° | 64° | — | — |
| 1984 | 79° | 47° | 63° | — | — |
| 1983 | 83° | 58° | 70° | — | — |
| 1982 | 75° | 47° | 61° | 1.3" | — |
| 1981 | 81° | 59° | 70° | — | — |
| 1980coldest | 64° | 43° | 53° | 0.79" | — |
| 1979 | 79° | 45° | 62° | — | — |
| 1978 | 81° | 58° | 69° | 0.03" | — |
| 1977 | 82° | 56° | 69° | 0.18" | — |
| 1976 | 84° | 67° | 75° | — | — |
| 1975 | 75° | 49° | 62° | — | — |
| 1974 | 83° | 59° | 71° | 0.03" | — |
| 1973 | 81° | 58° | 69° | — | — |
| 1972 | 79° | 58° | 68° | — | — |
| 1971 | 87° | 62° | 75° | — | — |
55 years of data from LOWELL